Detective Inspector Mark Pemberton has been haunted by one case for his entire career. The brutal murder of Muriel Brown is the only case he never solved, and Pemberton is determined to crack it before handing in his badge. But when ageing detective Hadley is added to his team, the investigation doesn't go as planned. Driven to sick leave by allegations of murder on the job, Hadley has finally been cleared and is back on the force. But as Hadley assists...